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【摘 要】由于医院分为三类场所，三类场所对接地系统要求不同，根据医院建筑内部房间功能的不同，可采用TN－S接地系统或IT接地系统；对于电击危险性大的手术室，还应采用局部等电位措施。重点论述了IT配电系统在医院的应用范围。
【关键词】TN－S系统；IT系统；手术室配电系统；故障；绝缘监视；漏电；局部等电位联结
Potential connection of the grounding system in the hospital electrical design and local
Zhang Qiang1,Bi De-ning2
(1.Zibo City Institute of Architectural Design Zibo Shangdong 255037；
2.The Zibo four new Architectural Design Co., Ltd Zibo Shangdong 255037)
【Abstract】Because the hospital is divided into three types of places, three types of spaces require different grounding system according to the function of hospital building interior room can be TN-S earthing system or IT earthing system; electric shock risk of a large operating room, but alsolocal and other potential measures. Focus discusses the scope of application of IT power distribution system in the hospital.
【Key words】TN-S system;IT systems;Operating room distribution system;Failure;Insulation monitoring;Leakage;Local equipotential bonding
1. 首先介绍一下医院场所的分类。IEC按医疗电气设备与人体接触的状况和断电的后果，将医疗场所作如下分类
【关键词】TN－S系统；IT系统；手术室配电系统；故障；绝缘监视；漏电；局部等电位联结
Potential connection of the grounding system in the hospital electrical design and local
Zhang Qiang1,Bi De-ning2
(1.Zibo City Institute of Architectural Design Zibo Shangdong 255037；
2.The Zibo four new Architectural Design Co., Ltd Zibo Shangdong 255037)
【Abstract】Because the hospital is divided into three types of places, three types of spaces require different grounding system according to the function of hospital building interior room can be TN-S earthing system or IT earthing system; electric shock risk of a large operating room, but alsolocal and other potential measures. Focus discusses the scope of application of IT power distribution system in the hospital.
【Key words】TN-S system;IT systems;Operating room distribution system;Failure;Insulation monitoring;Leakage;Local equipotential bonding
1. 首先介绍一下医院场所的分类。IEC按医疗电气设备与人体接触的状况和断电的后果，将医疗场所作如下分类